//
//  ViewController.swift
//  swiftim
//
//  Created by yangjian on 2023/5/30.
//

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        self.view.backgroundColor = UIColor.orange
    }
}

